update irradiance caculation
parent
441aca4df4
commit
463ac6fe59
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@ -20,6 +20,17 @@
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"cmakeCommandArgs": "",
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"buildCommandArgs": "",
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"ctestCommandArgs": "",
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"inheritEnvironments": [ "clang_cl_x64_x64" ]
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},
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{
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"name": "x64-Clang-Release",
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"generator": "Ninja",
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"configurationType": "RelWithDebInfo",
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"buildRoot": "${projectDir}\\out\\build\\${name}",
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"installRoot": "${projectDir}\\out\\install\\${name}",
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"cmakeCommandArgs": "",
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"buildCommandArgs": "",
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"ctestCommandArgs": "",
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"inheritEnvironments": [ "clang_cl_x64_x64" ],
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"variables": []
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}
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@ -830,7 +830,7 @@ void VulkanExample::getEnabledFeatures()
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}
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}
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void VulkanExample::loadglTFFile(std::string filename)
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void VulkanExample::loadglTFFile(std::string filename, VulkanglTFModel& model, bool bSkyboxFlag = false)
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{
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tinygltf::Model glTFInput;
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tinygltf::TinyGLTF gltfContext;
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@ -900,10 +900,7 @@ void VulkanExample::getEnabledFeatures()
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size_t indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
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glTFModel.indices.count = static_cast<uint32_t>(indexBuffer.size());
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struct StagingBuffer {
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VkBuffer buffer;
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VkDeviceMemory memory;
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} vertexStaging, indexStaging;
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// Create host visible staging buffers (source)
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VK_CHECK_RESULT(vulkanDevice->createBuffer(
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@ -969,7 +966,9 @@ void VulkanExample::getEnabledFeatures()
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void VulkanExample::loadAssets()
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{
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loadglTFFile(getAssetPath() + "buster_drone/busterDrone.gltf");
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loadglTFFile(getAssetPath() + "buster_drone/busterDrone.gltf",glTFModel);
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loadglTFFile(getAssetPath() + "models/cube.gltf", skyboxModel, true);
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ibltextures.skyboxCube.loadFromFile(getAssetPath() + "textures/hdr/pisa_cube.ktx", VK_FORMAT_R16G16B16A16_SFLOAT, vulkanDevice, queue);
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}
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void VulkanExample::setupDescriptors()
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@ -1056,7 +1055,6 @@ void VulkanExample::getEnabledFeatures()
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vks::initializers::writeDescriptorSet(descriptorSet,VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,1,&ibltextures.irradianceCube.descriptor),
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vks::initializers::writeDescriptorSet(descriptorSet,VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,2,&ibltextures.lutBrdf.descriptor),
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vks::initializers::writeDescriptorSet(descriptorSet,VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,3,&ibltextures.prefilteredCube.descriptor),
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};
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vkUpdateDescriptorSets(device, 4, writeDescriptorSets.data(), 0, nullptr);
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@ -1256,6 +1254,954 @@ void VulkanExample::getEnabledFeatures()
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memcpy(shaderData.buffer.mapped, &shaderData.values, sizeof(shaderData.values));
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}
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// --------- BRDF LUT precompute preparation ----------------
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void VulkanExample::generateIrradianceCubemap()
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{
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auto tStart = std::chrono::high_resolution_clock::now();
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constexpr VkFormat format = VK_FORMAT_R32G32B32A32_SFLOAT;
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constexpr int32_t dim = 64;
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const uint32_t numMips = static_cast<uint32_t>(floor(log2(dim))) + 1;
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VkImageCreateInfo imageCI = vks::initializers::imageCreateInfo();
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imageCI.imageType = VK_IMAGE_TYPE_2D;
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imageCI.format = format;
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imageCI.extent.width = dim;
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imageCI.extent.height = dim;
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imageCI.extent.depth = 1;
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imageCI.mipLevels = numMips;
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imageCI.arrayLayers = 6;
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imageCI.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCI.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCI.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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imageCI.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCI, nullptr, &ibltextures.irradianceCube.image))
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// allocate memory for irradiance cube map
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VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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vkGetImageMemoryRequirements(device, ibltextures.irradianceCube.image, &memReqs);
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memAlloc.allocationSize = memReqs.size;
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memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &ibltextures.irradianceCube.deviceMemory))
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VK_CHECK_RESULT(vkBindImageMemory(device, ibltextures.irradianceCube.image, ibltextures.irradianceCube.deviceMemory, 0))
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VkImageViewCreateInfo viewCI = vks::initializers::imageViewCreateInfo();
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viewCI.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
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viewCI.format = format;
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viewCI.subresourceRange = {};
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viewCI.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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viewCI.subresourceRange.levelCount = numMips;
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viewCI.subresourceRange.layerCount = 6;
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viewCI.image = ibltextures.irradianceCube.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &viewCI, nullptr, &ibltextures.irradianceCube.view))
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// set up sampler and image view
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VkSamplerCreateInfo samplerCI = vks::initializers::samplerCreateInfo();
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samplerCI.magFilter = VK_FILTER_LINEAR;
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samplerCI.minFilter = VK_FILTER_LINEAR;
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samplerCI.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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samplerCI.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerCI.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerCI.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerCI.minLod = 0.0f;
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samplerCI.maxLod = static_cast<float>(numMips);
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samplerCI.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &samplerCI, nullptr, &ibltextures.irradianceCube.sampler))
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ibltextures.irradianceCube.descriptor.imageView = ibltextures.irradianceCube.view;
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ibltextures.irradianceCube.descriptor.sampler = ibltextures.irradianceCube.sampler;
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ibltextures.irradianceCube.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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ibltextures.irradianceCube.device = vulkanDevice;
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//Setup Framebuffer and so on
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VkAttachmentDescription attachDescription = {};
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attachDescription.format = format;
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attachDescription.samples = VK_SAMPLE_COUNT_1_BIT;
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attachDescription.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attachDescription.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
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attachDescription.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attachDescription.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attachDescription.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attachDescription.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
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VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
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VkSubpassDescription subpassDescription = {};
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subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
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subpassDescription.colorAttachmentCount = 1;
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subpassDescription.pColorAttachments = &colorReference;
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std::array<VkSubpassDependency, 2> dependencies;
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dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[0].dstSubpass = 0;
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dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
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dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
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dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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dependencies[1].srcSubpass = 0;
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dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
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dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
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dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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//set up render pass
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VkRenderPassCreateInfo renderPassCI = vks::initializers::renderPassCreateInfo();
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renderPassCI.attachmentCount = 1;
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renderPassCI.pAttachments = &attachDescription;
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renderPassCI.subpassCount = 1;
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renderPassCI.pSubpasses = &subpassDescription;
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renderPassCI.dependencyCount = 2;
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renderPassCI.pDependencies = dependencies.data();
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VkRenderPass renderpass;
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VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassCI, nullptr, &renderpass));
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// create offscreen image
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VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.extent.width = dim;
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imageCreateInfo.extent.height = dim;
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imageCreateInfo.extent.depth = 1;
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imageCreateInfo.mipLevels = 1;
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imageCreateInfo.arrayLayers = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCreateInfo.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &offscreen.image))
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// allocate memory
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VkMemoryAllocateInfo imageCIMemAlloc = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements imageCIMemReqs;
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vkGetImageMemoryRequirements(device, offscreen.image, &imageCIMemReqs);
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imageCIMemAlloc.allocationSize = imageCIMemReqs.size;
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imageCIMemAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(imageCIMemReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &imageCIMemAlloc, nullptr, &offscreen.memory))
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VK_CHECK_RESULT(vkBindImageMemory(device, offscreen.image, offscreen.memory, 0))
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// create color image view
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VkImageViewCreateInfo colorImageView = vks::initializers::imageViewCreateInfo();
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colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
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colorImageView.format = format;
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colorImageView.flags = 0;
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colorImageView.subresourceRange = {};
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colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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colorImageView.subresourceRange.baseMipLevel = 0;
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colorImageView.subresourceRange.levelCount = 1;
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colorImageView.subresourceRange.baseArrayLayer = 0;
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colorImageView.subresourceRange.layerCount = 1;
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colorImageView.image = offscreen.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offscreen.view))
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// set up framebuffer for offscreen image
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VkFramebufferCreateInfo fbufCreateInfo = vks::initializers::framebufferCreateInfo();
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fbufCreateInfo.renderPass = renderpass;
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fbufCreateInfo.attachmentCount = 1;
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fbufCreateInfo.pAttachments = &offscreen.view;
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fbufCreateInfo.width = dim;
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fbufCreateInfo.height = dim;
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fbufCreateInfo.layers = 1;
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VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreen.framebuffer))
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VkCommandBuffer layoutCmd = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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vks::tools::setImageLayout(
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layoutCmd,
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offscreen.image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
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vulkanDevice->flushCommandBuffer(layoutCmd, queue, true);
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// create descriptor set layout
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VkDescriptorSetLayout descriptorsetlayout;
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std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
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{
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vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0),
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};
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VkDescriptorSetLayoutCreateInfo descriptorsetlayoutCI = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
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VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorsetlayoutCI, nullptr, &descriptorsetlayout));
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// allocate pool
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std::vector<VkDescriptorPoolSize> poolSizes = { vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1) };
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VkDescriptorPoolCreateInfo descriptorPoolCI = vks::initializers::descriptorPoolCreateInfo(poolSizes, 2);
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VkDescriptorPool descriptorpool;
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VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolCI, nullptr, &descriptorpool));
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//write to poos
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VkDescriptorSet descriptorset;
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VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorpool, &descriptorsetlayout, 1);
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VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorset));
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VkWriteDescriptorSet writeDescriptorSet = vks::initializers::writeDescriptorSet(descriptorset, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &ibltextures.skyboxCube.descriptor);
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vkUpdateDescriptorSets(device, 1, &writeDescriptorSet, 0, nullptr);
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// push matrix
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VkPipelineLayout pipelinelayout;
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std::vector<VkPushConstantRange> pushConstantRanges =
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{
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vks::initializers::pushConstantRange(VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, sizeof(IrradiancePushBlock), 0)
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};
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VkPipelineLayoutCreateInfo pipelineLayoutCI = vks::initializers::pipelineLayoutCreateInfo(&descriptorsetlayout, 1);
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pipelineLayoutCI.pushConstantRangeCount = 1;
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pipelineLayoutCI.pPushConstantRanges = pushConstantRanges.data();
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VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCI, nullptr, &pipelinelayout));
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//Pipeline Setting
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
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VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE);
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VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
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VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
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VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_FALSE, VK_FALSE, VK_COMPARE_OP_LESS_OR_EQUAL);
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VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1);
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VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
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std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
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VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
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std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
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const std::vector<VkVertexInputBindingDescription> vertexInputBindings =
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{
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vks::initializers::vertexInputBindingDescription(0, sizeof(VulkanglTFModel::Vertex), VK_VERTEX_INPUT_RATE_VERTEX),
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};
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const std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
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vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, pos)), // Location 0: Position
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};
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VkPipelineVertexInputStateCreateInfo vertexInputStateCI = vks::initializers::pipelineVertexInputStateCreateInfo();
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vertexInputStateCI.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
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vertexInputStateCI.pVertexBindingDescriptions = vertexInputBindings.data();
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vertexInputStateCI.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
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vertexInputStateCI.pVertexAttributeDescriptions = vertexInputAttributes.data();
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VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelinelayout, renderpass);
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pipelineCI.pInputAssemblyState = &inputAssemblyState;
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pipelineCI.pRasterizationState = &rasterizationState;
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pipelineCI.pColorBlendState = &colorBlendState;
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pipelineCI.pMultisampleState = &multisampleState;
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pipelineCI.pViewportState = &viewportState;
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pipelineCI.pDepthStencilState = &depthStencilState;
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pipelineCI.pDynamicState = &dynamicState;
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pipelineCI.stageCount = 2;
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pipelineCI.pStages = shaderStages.data();
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pipelineCI.renderPass = renderpass;
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pipelineCI.pVertexInputState = &vertexInputStateCI;
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shaderStages[0] = loadShader(getHomeworkShadersPath() + "homework1/filtercube.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader(getHomeworkShadersPath() + "homework1/irradiancecube.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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VkPipeline pipeline;
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipeline));
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// offscreen Render pass begin
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VkClearValue clearValues[1];
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clearValues[0].color = { { 0.0f, 0.0f, 0.2f, 0.0f } };
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = renderpass;
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renderPassBeginInfo.framebuffer = offscreen.framebuffer;
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renderPassBeginInfo.renderArea.extent.width = dim;
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renderPassBeginInfo.renderArea.extent.height = dim;
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renderPassBeginInfo.clearValueCount = 1;
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renderPassBeginInfo.pClearValues = clearValues;
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//six face in cube map
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std::vector<glm::mat4> matrices = {
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// POSITIVE_X
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glm::rotate(glm::rotate(glm::mat4(1.0f), glm::radians(90.0f), glm::vec3(0.0f, 1.0f, 0.0f)), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
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// NEGATIVE_X
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glm::rotate(glm::rotate(glm::mat4(1.0f), glm::radians(-90.0f), glm::vec3(0.0f, 1.0f, 0.0f)), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
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// POSITIVE_Y
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glm::rotate(glm::mat4(1.0f), glm::radians(-90.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
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// NEGATIVE_Y
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(90.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// POSITIVE_Z
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// NEGATIVE_Z
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(180.0f), glm::vec3(0.0f, 0.0f, 1.0f)),
|
||||
};
|
||||
VkCommandBuffer cmdBuf = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
||||
VkViewport viewport = vks::initializers::viewport((float)dim, (float)dim, 0.0f, 1.0f);
|
||||
VkRect2D scissor = vks::initializers::rect2D(dim, dim, 0, 0);
|
||||
|
||||
vkCmdSetViewport(cmdBuf, 0, 1, &viewport);
|
||||
vkCmdSetScissor(cmdBuf, 0, 1, &scissor);
|
||||
|
||||
VkImageSubresourceRange subresourceRange = {};
|
||||
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
subresourceRange.baseMipLevel = 0;
|
||||
subresourceRange.levelCount = numMips;
|
||||
subresourceRange.layerCount = 6;
|
||||
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
ibltextures.irradianceCube.image,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
subresourceRange);
|
||||
|
||||
for (uint32_t m = 0; m < numMips; ++m)
|
||||
{
|
||||
for (uint32_t f = 0; f < 6; ++f)
|
||||
{
|
||||
viewport.width = static_cast<float>(dim * std::pow(0.5f, m));
|
||||
viewport.height = static_cast<float>(dim * std::pow(0.5f, m));
|
||||
vkCmdSetViewport(cmdBuf, 0, 1, &viewport);
|
||||
// Render scene from cube face's point of view
|
||||
vkCmdBeginRenderPass(cmdBuf, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
irradinacePushBlock.mvp = glm::perspective((float)(M_PI / 2.0), 1.0f, 0.1f, 512.0f) * matrices[f];
|
||||
vkCmdPushConstants(cmdBuf, pipelinelayout, VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof(IrradiancePushBlock), &irradinacePushBlock);
|
||||
|
||||
vkCmdBindPipeline(cmdBuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
|
||||
vkCmdBindDescriptorSets(cmdBuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelinelayout, 0, 1, &descriptorset, 0, NULL);
|
||||
skyboxModel.draw(cmdBuf, pipelinelayout);
|
||||
vkCmdEndRenderPass(cmdBuf);
|
||||
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
|
||||
|
||||
VkImageCopy copyRegion = {};
|
||||
copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
copyRegion.srcSubresource.layerCount = 1;
|
||||
copyRegion.srcSubresource.mipLevel = 0;
|
||||
copyRegion.srcSubresource.baseArrayLayer = 0;
|
||||
|
||||
copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
copyRegion.dstSubresource.layerCount = 1;
|
||||
copyRegion.dstSubresource.mipLevel = m;
|
||||
copyRegion.dstSubresource.baseArrayLayer = f;
|
||||
|
||||
copyRegion.extent.width = static_cast<uint32_t>(viewport.width);
|
||||
copyRegion.extent.height = static_cast<uint32_t>(viewport.height);
|
||||
copyRegion.extent.depth = 1;
|
||||
|
||||
vkCmdCopyImage(
|
||||
cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
ibltextures.irradianceCube.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
1,
|
||||
©Region);
|
||||
vks::tools::setImageLayout(cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
vks::tools::setImageLayout(cmdBuf,
|
||||
ibltextures.irradianceCube.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
|
||||
subresourceRange);
|
||||
vulkanDevice->flushCommandBuffer(cmdBuf, queue);
|
||||
|
||||
vkDestroyRenderPass(device, renderpass, nullptr);
|
||||
vkDestroyFramebuffer(device, offscreen.framebuffer, nullptr);
|
||||
vkFreeMemory(device, offscreen.memory, nullptr);
|
||||
vkDestroyImageView(device, offscreen.view, nullptr);
|
||||
vkDestroyImage(device, offscreen.image, nullptr);
|
||||
vkDestroyDescriptorPool(device, descriptorpool, nullptr);
|
||||
vkDestroyDescriptorSetLayout(device, descriptorsetlayout, nullptr);
|
||||
vkDestroyPipeline(device, pipeline, nullptr);
|
||||
vkDestroyPipelineLayout(device, pipelinelayout, nullptr);
|
||||
|
||||
auto tEnd = std::chrono::high_resolution_clock::now();
|
||||
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
|
||||
std::cout << "Generating irradiance cube with " << numMips << " mip levels took " << tDiff << " ms" << std::endl;
|
||||
|
||||
}
|
||||
|
||||
|
||||
void VulkanExample::generatePrefilteredCubemap()
|
||||
{
|
||||
auto tStart = std::chrono::high_resolution_clock::now();
|
||||
|
||||
constexpr VkFormat format = VK_FORMAT_R32G32B32A32_SFLOAT;
|
||||
constexpr int32_t dim = 512;
|
||||
const uint32_t numMips = static_cast<uint32_t>(floor(log2(dim))) + 1;
|
||||
|
||||
VkImageCreateInfo imageCI = vks::initializers::imageCreateInfo();
|
||||
imageCI.imageType = VK_IMAGE_TYPE_2D;
|
||||
imageCI.format = format;
|
||||
imageCI.extent.width = dim;
|
||||
imageCI.extent.height = dim;
|
||||
imageCI.extent.depth = 1;
|
||||
imageCI.mipLevels = numMips;
|
||||
imageCI.arrayLayers = 6;
|
||||
imageCI.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
imageCI.tiling = VK_IMAGE_TILING_OPTIMAL;
|
||||
imageCI.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
|
||||
imageCI.flags = VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
|
||||
|
||||
VK_CHECK_RESULT(vkCreateImage(device, &imageCI, nullptr, &ibltextures.prefilteredCube.image));
|
||||
VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
|
||||
VkMemoryRequirements memReqs;
|
||||
vkGetImageMemoryRequirements(device, ibltextures.prefilteredCube.image, &memReqs);
|
||||
memAlloc.allocationSize = memReqs.size;
|
||||
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
|
||||
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &ibltextures.prefilteredCube.deviceMemory));
|
||||
VK_CHECK_RESULT(vkBindImageMemory(device, ibltextures.prefilteredCube.image, ibltextures.prefilteredCube.deviceMemory, 0));
|
||||
|
||||
// Image view
|
||||
VkImageViewCreateInfo viewCI = vks::initializers::imageViewCreateInfo();
|
||||
viewCI.viewType = VK_IMAGE_VIEW_TYPE_CUBE;
|
||||
viewCI.format = format;
|
||||
viewCI.subresourceRange = {};
|
||||
viewCI.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
viewCI.subresourceRange.levelCount = numMips;
|
||||
viewCI.subresourceRange.layerCount = 6;
|
||||
viewCI.image = ibltextures.prefilteredCube.image;
|
||||
VK_CHECK_RESULT(vkCreateImageView(device, &viewCI, nullptr, &ibltextures.prefilteredCube.view));
|
||||
|
||||
// Sampler
|
||||
VkSamplerCreateInfo samplerCI = vks::initializers::samplerCreateInfo();
|
||||
samplerCI.magFilter = VK_FILTER_LINEAR;
|
||||
samplerCI.minFilter = VK_FILTER_LINEAR;
|
||||
samplerCI.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
||||
samplerCI.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.minLod = 0.0f;
|
||||
samplerCI.maxLod = static_cast<float>(numMips);
|
||||
samplerCI.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
|
||||
VK_CHECK_RESULT(vkCreateSampler(device, &samplerCI, nullptr, &ibltextures.prefilteredCube.sampler));
|
||||
|
||||
ibltextures.prefilteredCube.descriptor.imageView = ibltextures.prefilteredCube.view;
|
||||
ibltextures.prefilteredCube.descriptor.sampler = ibltextures.prefilteredCube.sampler;
|
||||
ibltextures.prefilteredCube.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
ibltextures.prefilteredCube.device = vulkanDevice;
|
||||
|
||||
// FB, Att, RP, Pipe, etc.
|
||||
VkAttachmentDescription attDesc = {};
|
||||
// Color attachment
|
||||
attDesc.format = format;
|
||||
attDesc.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attDesc.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attDesc.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
attDesc.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
attDesc.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attDesc.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
attDesc.finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
|
||||
VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
|
||||
|
||||
VkSubpassDescription subpassDescription = {};
|
||||
subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
||||
subpassDescription.colorAttachmentCount = 1;
|
||||
subpassDescription.pColorAttachments = &colorReference;
|
||||
|
||||
// Use subpass dependencies for layout transitions
|
||||
std::array<VkSubpassDependency, 2> dependencies;
|
||||
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
|
||||
dependencies[0].dstSubpass = 0;
|
||||
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
||||
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
||||
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
||||
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
||||
dependencies[1].srcSubpass = 0;
|
||||
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
|
||||
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
||||
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
||||
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
||||
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
||||
|
||||
// Renderpass
|
||||
VkRenderPassCreateInfo renderPassCI = vks::initializers::renderPassCreateInfo();
|
||||
renderPassCI.attachmentCount = 1;
|
||||
renderPassCI.pAttachments = &attDesc;
|
||||
renderPassCI.subpassCount = 1;
|
||||
renderPassCI.pSubpasses = &subpassDescription;
|
||||
renderPassCI.dependencyCount = 2;
|
||||
renderPassCI.pDependencies = dependencies.data();
|
||||
VkRenderPass renderpass;
|
||||
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassCI, nullptr, &renderpass));
|
||||
|
||||
struct {
|
||||
VkImage image;
|
||||
VkImageView view;
|
||||
VkDeviceMemory memory;
|
||||
VkFramebuffer framebuffer;
|
||||
} offscreen;
|
||||
//framebuffer
|
||||
{
|
||||
// Color attachment
|
||||
VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
|
||||
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
|
||||
imageCreateInfo.format = format;
|
||||
imageCreateInfo.extent.width = dim;
|
||||
imageCreateInfo.extent.height = dim;
|
||||
imageCreateInfo.extent.depth = 1;
|
||||
imageCreateInfo.mipLevels = 1;
|
||||
imageCreateInfo.arrayLayers = 1;
|
||||
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
|
||||
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
imageCreateInfo.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
|
||||
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
|
||||
VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &offscreen.image));
|
||||
|
||||
VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
|
||||
VkMemoryRequirements memReqs;
|
||||
vkGetImageMemoryRequirements(device, offscreen.image, &memReqs);
|
||||
memAlloc.allocationSize = memReqs.size;
|
||||
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
|
||||
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &offscreen.memory));
|
||||
VK_CHECK_RESULT(vkBindImageMemory(device, offscreen.image, offscreen.memory, 0));
|
||||
|
||||
VkImageViewCreateInfo colorImageView = vks::initializers::imageViewCreateInfo();
|
||||
colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
colorImageView.format = format;
|
||||
colorImageView.flags = 0;
|
||||
colorImageView.subresourceRange = {};
|
||||
colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
colorImageView.subresourceRange.baseMipLevel = 0;
|
||||
colorImageView.subresourceRange.levelCount = 1;
|
||||
colorImageView.subresourceRange.baseArrayLayer = 0;
|
||||
colorImageView.subresourceRange.layerCount = 1;
|
||||
colorImageView.image = offscreen.image;
|
||||
VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offscreen.view));
|
||||
|
||||
VkFramebufferCreateInfo fbufCreateInfo = vks::initializers::framebufferCreateInfo();
|
||||
fbufCreateInfo.renderPass = renderpass;
|
||||
fbufCreateInfo.attachmentCount = 1;
|
||||
fbufCreateInfo.pAttachments = &offscreen.view;
|
||||
fbufCreateInfo.width = dim;
|
||||
fbufCreateInfo.height = dim;
|
||||
fbufCreateInfo.layers = 1;
|
||||
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreen.framebuffer));
|
||||
|
||||
VkCommandBuffer layoutCmd = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
||||
vks::tools::setImageLayout(
|
||||
layoutCmd,
|
||||
offscreen.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
|
||||
vulkanDevice->flushCommandBuffer(layoutCmd, queue, true);
|
||||
}
|
||||
|
||||
// Descriptors
|
||||
VkDescriptorSetLayout descriptorsetlayout;
|
||||
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
|
||||
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0),
|
||||
};
|
||||
VkDescriptorSetLayoutCreateInfo descriptorsetlayoutCI = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
|
||||
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorsetlayoutCI, nullptr, &descriptorsetlayout));
|
||||
|
||||
// Descriptor Pool
|
||||
std::vector<VkDescriptorPoolSize> poolSizes = { vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1) };
|
||||
VkDescriptorPoolCreateInfo descriptorPoolCI = vks::initializers::descriptorPoolCreateInfo(poolSizes, 2);
|
||||
VkDescriptorPool descriptorpool;
|
||||
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolCI, nullptr, &descriptorpool));
|
||||
|
||||
VkDescriptorSet descriptorset;
|
||||
VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorpool, &descriptorsetlayout, 1);
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorset));
|
||||
VkWriteDescriptorSet writeDescriptorSet = vks::initializers::writeDescriptorSet(descriptorset, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &ibltextures.skyboxCube.descriptor);
|
||||
vkUpdateDescriptorSets(device, 1, &writeDescriptorSet, 0, nullptr);
|
||||
|
||||
|
||||
std::vector<VkPushConstantRange> pushConstantRanges = {
|
||||
vks::initializers::pushConstantRange(VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, sizeof(PrefilterPushBlock), 0),
|
||||
};
|
||||
VkPipelineLayoutCreateInfo pipelineLayoutCI = vks::initializers::pipelineLayoutCreateInfo(&descriptorsetlayout, 1);
|
||||
pipelineLayoutCI.pushConstantRangeCount = 1;
|
||||
pipelineLayoutCI.pPushConstantRanges = pushConstantRanges.data();
|
||||
VkPipelineLayout pipelinelayout;
|
||||
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCI, nullptr, &pipelinelayout));
|
||||
|
||||
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
|
||||
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE);
|
||||
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
|
||||
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
|
||||
VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_FALSE, VK_FALSE, VK_COMPARE_OP_LESS_OR_EQUAL);
|
||||
VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1);
|
||||
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
|
||||
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
|
||||
VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
|
||||
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
||||
|
||||
const std::vector<VkVertexInputBindingDescription> vertexInputBindings =
|
||||
{
|
||||
vks::initializers::vertexInputBindingDescription(0, sizeof(VulkanglTFModel::Vertex), VK_VERTEX_INPUT_RATE_VERTEX),
|
||||
};
|
||||
|
||||
const std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
|
||||
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, pos)), // Location 0: Position
|
||||
};
|
||||
VkPipelineVertexInputStateCreateInfo vertexInputStateCI = vks::initializers::pipelineVertexInputStateCreateInfo();
|
||||
vertexInputStateCI.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
|
||||
vertexInputStateCI.pVertexBindingDescriptions = vertexInputBindings.data();
|
||||
vertexInputStateCI.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
|
||||
vertexInputStateCI.pVertexAttributeDescriptions = vertexInputAttributes.data();
|
||||
|
||||
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelinelayout, renderpass);
|
||||
pipelineCI.pInputAssemblyState = &inputAssemblyState;
|
||||
pipelineCI.pRasterizationState = &rasterizationState;
|
||||
pipelineCI.pColorBlendState = &colorBlendState;
|
||||
pipelineCI.pMultisampleState = &multisampleState;
|
||||
pipelineCI.pViewportState = &viewportState;
|
||||
pipelineCI.pDepthStencilState = &depthStencilState;
|
||||
pipelineCI.pDynamicState = &dynamicState;
|
||||
pipelineCI.stageCount = 2;
|
||||
pipelineCI.pStages = shaderStages.data();
|
||||
pipelineCI.renderPass = renderpass;
|
||||
pipelineCI.pVertexInputState = &vertexInputStateCI;
|
||||
|
||||
shaderStages[0] = loadShader(getHomeworkShadersPath() + "homework1/filtercube.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getHomeworkShadersPath() + "homework1/prefilterenvmap.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
VkPipeline pipeline;
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipeline));
|
||||
|
||||
//Render & build cmd
|
||||
VkClearValue clearValues[1];
|
||||
clearValues[0].color = { { 0.0f, 0.0f, 0.2f, 0.0f } };
|
||||
|
||||
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
|
||||
// Reuse render pass from example pass
|
||||
renderPassBeginInfo.renderPass = renderpass;
|
||||
renderPassBeginInfo.framebuffer = offscreen.framebuffer;
|
||||
renderPassBeginInfo.renderArea.extent.width = dim;
|
||||
renderPassBeginInfo.renderArea.extent.height = dim;
|
||||
renderPassBeginInfo.clearValueCount = 1;
|
||||
renderPassBeginInfo.pClearValues = clearValues;
|
||||
|
||||
std::vector<glm::mat4> matrices = {
|
||||
// POSITIVE_X
|
||||
glm::rotate(glm::rotate(glm::mat4(1.0f), glm::radians(90.0f), glm::vec3(0.0f, 1.0f, 0.0f)), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// NEGATIVE_X
|
||||
glm::rotate(glm::rotate(glm::mat4(1.0f), glm::radians(-90.0f), glm::vec3(0.0f, 1.0f, 0.0f)), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// POSITIVE_Y
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(-90.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// NEGATIVE_Y
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(90.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// POSITIVE_Z
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(180.0f), glm::vec3(1.0f, 0.0f, 0.0f)),
|
||||
// NEGATIVE_Z
|
||||
glm::rotate(glm::mat4(1.0f), glm::radians(180.0f), glm::vec3(0.0f, 0.0f, 1.0f)),
|
||||
};
|
||||
VkCommandBuffer cmdBuf = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
||||
|
||||
VkViewport viewport = vks::initializers::viewport((float)dim, (float)dim, 0.0f, 1.0f);
|
||||
VkRect2D scissor = vks::initializers::rect2D(dim, dim, 0, 0);
|
||||
|
||||
vkCmdSetViewport(cmdBuf, 0, 1, &viewport);
|
||||
vkCmdSetScissor(cmdBuf, 0, 1, &scissor);
|
||||
|
||||
VkImageSubresourceRange subresourceRange = {};
|
||||
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
subresourceRange.baseMipLevel = 0;
|
||||
subresourceRange.levelCount = numMips;
|
||||
subresourceRange.layerCount = 6;
|
||||
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
ibltextures.prefilteredCube.image,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
subresourceRange);
|
||||
|
||||
for (uint32_t m = 0; m < numMips; ++m)
|
||||
{
|
||||
//mip level according to roughness
|
||||
prefilterPushBlock.roughness = float(m) / float(numMips - 1);
|
||||
for (uint32_t f = 0; f < 6; ++f)
|
||||
{
|
||||
viewport.width = static_cast<float>(dim * std::pow(0.5f, m));
|
||||
viewport.height = static_cast<float>(dim * std::pow(0.5f, m));
|
||||
vkCmdSetViewport(cmdBuf, 0, 1, &viewport);
|
||||
// Render scene from cube face's point of view
|
||||
vkCmdBeginRenderPass(cmdBuf, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
|
||||
// Update shader push constant block
|
||||
prefilterPushBlock.mvp = glm::perspective((float)(M_PI / 2.0), 1.0f, 0.1f, 512.0f) * matrices[f];
|
||||
|
||||
vkCmdPushConstants(cmdBuf, pipelinelayout, VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, 0, sizeof(PrefilterPushBlock), &prefilterPushBlock);
|
||||
vkCmdBindPipeline(cmdBuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
|
||||
vkCmdBindDescriptorSets(cmdBuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelinelayout, 0, 1, &descriptorset, 0, nullptr);
|
||||
skyboxModel.draw(cmdBuf, pipelinelayout);
|
||||
vkCmdEndRenderPass(cmdBuf);
|
||||
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
|
||||
|
||||
VkImageCopy copyRegion{};
|
||||
copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
copyRegion.srcSubresource.baseArrayLayer = 0;
|
||||
copyRegion.srcSubresource.mipLevel = 0;
|
||||
copyRegion.srcSubresource.layerCount = 1;
|
||||
copyRegion.srcOffset = { 0, 0, 0 };
|
||||
|
||||
copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
copyRegion.dstSubresource.baseArrayLayer = f;
|
||||
copyRegion.dstSubresource.mipLevel = m;
|
||||
copyRegion.dstSubresource.layerCount = 1;
|
||||
copyRegion.dstOffset = { 0, 0, 0 };
|
||||
|
||||
copyRegion.extent.width = static_cast<uint32_t>(viewport.width);
|
||||
copyRegion.extent.height = static_cast<uint32_t>(viewport.height);
|
||||
copyRegion.extent.depth = 1;
|
||||
|
||||
vkCmdCopyImage(
|
||||
cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
ibltextures.prefilteredCube.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
1,
|
||||
©Region);
|
||||
|
||||
//Reset frame buffer image layout
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
offscreen.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
|
||||
}
|
||||
}
|
||||
|
||||
//Set format shader read
|
||||
vks::tools::setImageLayout(
|
||||
cmdBuf,
|
||||
ibltextures.prefilteredCube.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
|
||||
subresourceRange);
|
||||
|
||||
vulkanDevice->flushCommandBuffer(cmdBuf, queue);
|
||||
|
||||
vkDestroyRenderPass(device, renderpass, nullptr);
|
||||
vkDestroyFramebuffer(device, offscreen.framebuffer, nullptr);
|
||||
vkFreeMemory(device, offscreen.memory, nullptr);
|
||||
vkDestroyImageView(device, offscreen.view, nullptr);
|
||||
vkDestroyImage(device, offscreen.image, nullptr);
|
||||
vkDestroyDescriptorPool(device, descriptorpool, nullptr);
|
||||
vkDestroyDescriptorSetLayout(device, descriptorsetlayout, nullptr);
|
||||
vkDestroyPipeline(device, pipeline, nullptr);
|
||||
vkDestroyPipelineLayout(device, pipelinelayout, nullptr);
|
||||
|
||||
auto tEnd = std::chrono::high_resolution_clock::now();
|
||||
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
|
||||
std::cout << "Generating pre-filtered enivornment cube with " << numMips << " mip levels took " << tDiff << " ms" << std::endl;
|
||||
}
|
||||
|
||||
void VulkanExample::generateBRDFLUT()
|
||||
{
|
||||
auto tStart = std::chrono::high_resolution_clock::now();
|
||||
|
||||
constexpr VkFormat format = VK_FORMAT_R16G16_SFLOAT;
|
||||
constexpr int32_t dim = 512;
|
||||
|
||||
// Image
|
||||
VkImageCreateInfo imageCI = vks::initializers::imageCreateInfo();
|
||||
imageCI.imageType = VK_IMAGE_TYPE_2D;
|
||||
imageCI.format = format;
|
||||
imageCI.extent.width = dim;
|
||||
imageCI.extent.height = dim;
|
||||
imageCI.extent.depth = 1;
|
||||
imageCI.mipLevels = 1;
|
||||
imageCI.arrayLayers = 1;
|
||||
imageCI.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
imageCI.tiling = VK_IMAGE_TILING_OPTIMAL;
|
||||
imageCI.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
|
||||
VK_CHECK_RESULT(vkCreateImage(device, &imageCI, nullptr, &ibltextures.lutBrdf.image));
|
||||
VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
|
||||
VkMemoryRequirements memReqs;
|
||||
vkGetImageMemoryRequirements(device, ibltextures.lutBrdf.image, &memReqs);
|
||||
memAlloc.allocationSize = memReqs.size;
|
||||
memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
|
||||
VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &ibltextures.lutBrdf.deviceMemory));
|
||||
VK_CHECK_RESULT(vkBindImageMemory(device, ibltextures.lutBrdf.image, ibltextures.lutBrdf.deviceMemory, 0));
|
||||
|
||||
// Image view
|
||||
VkImageViewCreateInfo viewCI = vks::initializers::imageViewCreateInfo();
|
||||
viewCI.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
viewCI.format = format;
|
||||
viewCI.subresourceRange = {};
|
||||
viewCI.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
viewCI.subresourceRange.levelCount = 1;
|
||||
viewCI.subresourceRange.layerCount = 1;
|
||||
viewCI.image = ibltextures.lutBrdf.image;
|
||||
VK_CHECK_RESULT(vkCreateImageView(device, &viewCI, nullptr, &ibltextures.lutBrdf.view));
|
||||
|
||||
// Sampler
|
||||
VkSamplerCreateInfo samplerCI = vks::initializers::samplerCreateInfo();
|
||||
samplerCI.magFilter = VK_FILTER_LINEAR;
|
||||
samplerCI.minFilter = VK_FILTER_LINEAR;
|
||||
samplerCI.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
||||
samplerCI.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
||||
samplerCI.minLod = 0.0f;
|
||||
samplerCI.maxLod = 1.0f;
|
||||
samplerCI.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
|
||||
VK_CHECK_RESULT(vkCreateSampler(device, &samplerCI, nullptr, &ibltextures.lutBrdf.sampler));
|
||||
|
||||
ibltextures.lutBrdf.descriptor.imageView = ibltextures.lutBrdf.view;
|
||||
ibltextures.lutBrdf.descriptor.sampler = ibltextures.lutBrdf.sampler;
|
||||
ibltextures.lutBrdf.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
ibltextures.lutBrdf.device = vulkanDevice;
|
||||
|
||||
// FB, Att, RP, Pipe, etc.
|
||||
VkAttachmentDescription attDesc = {};
|
||||
// Color attachment
|
||||
attDesc.format = format;
|
||||
attDesc.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attDesc.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attDesc.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
attDesc.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
attDesc.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attDesc.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
attDesc.finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
|
||||
|
||||
VkSubpassDescription subpassDescription = {};
|
||||
subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
||||
subpassDescription.colorAttachmentCount = 1;
|
||||
subpassDescription.pColorAttachments = &colorReference;
|
||||
|
||||
// Use subpass dependencies for layout transitions
|
||||
std::array<VkSubpassDependency, 2> dependencies;
|
||||
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
|
||||
dependencies[0].dstSubpass = 0;
|
||||
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
||||
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
||||
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
||||
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
||||
dependencies[1].srcSubpass = 0;
|
||||
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
|
||||
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
||||
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
||||
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
||||
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
||||
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
||||
|
||||
// Create the actual renderpass
|
||||
VkRenderPassCreateInfo renderPassCI = vks::initializers::renderPassCreateInfo();
|
||||
renderPassCI.attachmentCount = 1;
|
||||
renderPassCI.pAttachments = &attDesc;
|
||||
renderPassCI.subpassCount = 1;
|
||||
renderPassCI.pSubpasses = &subpassDescription;
|
||||
renderPassCI.dependencyCount = 2;
|
||||
renderPassCI.pDependencies = dependencies.data();
|
||||
|
||||
VkRenderPass renderpass;
|
||||
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassCI, nullptr, &renderpass));
|
||||
|
||||
VkFramebufferCreateInfo framebufferCI = vks::initializers::framebufferCreateInfo();
|
||||
framebufferCI.renderPass = renderpass;
|
||||
framebufferCI.attachmentCount = 1;
|
||||
framebufferCI.pAttachments = &ibltextures.lutBrdf.view;
|
||||
framebufferCI.width = dim;
|
||||
framebufferCI.height = dim;
|
||||
framebufferCI.layers = 1;
|
||||
|
||||
VkFramebuffer framebuffer;
|
||||
VK_CHECK_RESULT(vkCreateFramebuffer(device, &framebufferCI, nullptr, &framebuffer));
|
||||
|
||||
// Descriptors
|
||||
VkDescriptorSetLayout descriptorsetlayout;
|
||||
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {};
|
||||
VkDescriptorSetLayoutCreateInfo descriptorsetlayoutCI = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
|
||||
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorsetlayoutCI, nullptr, &descriptorsetlayout));
|
||||
|
||||
// Descriptor Pool
|
||||
std::vector<VkDescriptorPoolSize> poolSizes = { vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1) };
|
||||
VkDescriptorPoolCreateInfo descriptorPoolCI = vks::initializers::descriptorPoolCreateInfo(poolSizes, 2);
|
||||
VkDescriptorPool descriptorpool;
|
||||
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolCI, nullptr, &descriptorpool));
|
||||
|
||||
// Descriptor sets
|
||||
VkDescriptorSet descriptorset;
|
||||
VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorpool, &descriptorsetlayout, 1);
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorset));
|
||||
|
||||
// Pipeline layout
|
||||
VkPipelineLayout pipelinelayout;
|
||||
VkPipelineLayoutCreateInfo pipelineLayoutCI = vks::initializers::pipelineLayoutCreateInfo(&descriptorsetlayout, 1);
|
||||
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCI, nullptr, &pipelinelayout));
|
||||
|
||||
// Pipeline
|
||||
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
|
||||
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE);
|
||||
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
|
||||
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
|
||||
VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_FALSE, VK_FALSE, VK_COMPARE_OP_LESS_OR_EQUAL);
|
||||
VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1);
|
||||
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
|
||||
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
|
||||
VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
|
||||
VkPipelineVertexInputStateCreateInfo emptyInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
|
||||
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
||||
|
||||
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelinelayout, renderpass);
|
||||
pipelineCI.pInputAssemblyState = &inputAssemblyState;
|
||||
pipelineCI.pRasterizationState = &rasterizationState;
|
||||
pipelineCI.pColorBlendState = &colorBlendState;
|
||||
pipelineCI.pMultisampleState = &multisampleState;
|
||||
pipelineCI.pViewportState = &viewportState;
|
||||
pipelineCI.pDepthStencilState = &depthStencilState;
|
||||
pipelineCI.pDynamicState = &dynamicState;
|
||||
pipelineCI.stageCount = 2;
|
||||
pipelineCI.pStages = shaderStages.data();
|
||||
pipelineCI.pVertexInputState = &emptyInputState;
|
||||
|
||||
// Look-up-table (from BRDF) pipeline
|
||||
shaderStages[0] = loadShader(getHomeworkShadersPath() + "homework1/genbrdflut.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getHomeworkShadersPath() + "homework1/genbrdflut.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
VkPipeline pipeline;
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipeline));
|
||||
|
||||
// Render
|
||||
VkClearValue clearValues[1];
|
||||
clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 1.0f } };
|
||||
|
||||
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
|
||||
renderPassBeginInfo.renderPass = renderpass;
|
||||
renderPassBeginInfo.renderArea.extent.width = dim;
|
||||
renderPassBeginInfo.renderArea.extent.height = dim;
|
||||
renderPassBeginInfo.clearValueCount = 1;
|
||||
renderPassBeginInfo.pClearValues = clearValues;
|
||||
renderPassBeginInfo.framebuffer = framebuffer;
|
||||
|
||||
VkCommandBuffer cmdBuf = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
||||
vkCmdBeginRenderPass(cmdBuf, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
VkViewport viewport = vks::initializers::viewport((float)dim, (float)dim, 0.0f, 1.0f);
|
||||
VkRect2D scissor = vks::initializers::rect2D(dim, dim, 0, 0);
|
||||
vkCmdSetViewport(cmdBuf, 0, 1, &viewport);
|
||||
vkCmdSetScissor(cmdBuf, 0, 1, &scissor);
|
||||
vkCmdBindPipeline(cmdBuf, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
|
||||
vkCmdDraw(cmdBuf, 3, 1, 0, 0);
|
||||
vkCmdEndRenderPass(cmdBuf);
|
||||
vulkanDevice->flushCommandBuffer(cmdBuf, queue);
|
||||
|
||||
vkQueueWaitIdle(queue);
|
||||
|
||||
vkDestroyPipeline(device, pipeline, nullptr);
|
||||
vkDestroyPipelineLayout(device, pipelinelayout, nullptr);
|
||||
vkDestroyRenderPass(device, renderpass, nullptr);
|
||||
vkDestroyFramebuffer(device, framebuffer, nullptr);
|
||||
vkDestroyDescriptorSetLayout(device, descriptorsetlayout, nullptr);
|
||||
vkDestroyDescriptorPool(device, descriptorpool, nullptr);
|
||||
|
||||
auto tEnd = std::chrono::high_resolution_clock::now();
|
||||
auto tDiff = std::chrono::duration<double, std::milli>(tEnd - tStart).count();
|
||||
std::cout << "Generating BRDF LUT took " << tDiff << " ms" << std::endl;
|
||||
}
|
||||
|
||||
//-------------------------- pbr precompute start ----------------------------------
|
||||
|
||||
#pragma region pbr render pass setting
|
||||
|
|
@ -1326,6 +2272,9 @@ void VulkanExample::getEnabledFeatures()
|
|||
{
|
||||
VulkanExampleBase::prepare();
|
||||
loadAssets();
|
||||
generateBRDFLUT();
|
||||
generateIrradianceCubemap();
|
||||
generatePrefilteredCubemap();
|
||||
prepareUniformBuffers();
|
||||
setupDescriptors();
|
||||
preparePipelines();
|
||||
|
|
|
|||
|
|
@ -249,6 +249,11 @@ public:
|
|||
vks::Buffer skinSSBO;
|
||||
} shaderData;
|
||||
|
||||
struct StagingBuffer {
|
||||
VkBuffer buffer;
|
||||
VkDeviceMemory memory;
|
||||
} vertexStaging, indexStaging;
|
||||
|
||||
struct Pipelines {
|
||||
VkPipeline solid;
|
||||
VkPipeline wireframe = VK_NULL_HANDLE;
|
||||
|
|
@ -325,6 +330,28 @@ public:
|
|||
vks::Texture2D lutBrdf;
|
||||
} ibltextures;
|
||||
|
||||
struct OffScreen
|
||||
{
|
||||
VkImage image;
|
||||
VkImageView view;
|
||||
VkDeviceMemory memory;
|
||||
VkFramebuffer framebuffer;
|
||||
} offscreen;
|
||||
|
||||
struct IrradiancePushBlock
|
||||
{
|
||||
glm::mat4 mvp;
|
||||
// Sampling deltas
|
||||
float deltaPhi = (2.0f * float(M_PI)) / 180.0f;
|
||||
float deltaTheta = (0.5f * float(M_PI)) / 64.0f;
|
||||
} irradinacePushBlock;
|
||||
|
||||
struct PrefilterPushBlock {
|
||||
glm::mat4 mvp;
|
||||
float roughness;
|
||||
uint32_t numSamples = 32u;
|
||||
} prefilterPushBlock;
|
||||
|
||||
VulkanglTFModel skyboxModel;
|
||||
|
||||
VulkanExample();
|
||||
|
|
@ -356,7 +383,7 @@ public:
|
|||
shaderData.buffer.destroy();
|
||||
shaderData.skinSSBO.destroy();
|
||||
}
|
||||
void loadglTFFile(std::string filename);
|
||||
void loadglTFFile(std::string filename, VulkanglTFModel& model, bool bSkyboxFlag = false);
|
||||
virtual void getEnabledFeatures();
|
||||
void createAttachment(VkFormat format, VkImageUsageFlagBits usage, FrameBufferAttachment* attachment, uint32_t width, uint32_t height);
|
||||
virtual void setupFrameBuffer();
|
||||
|
|
@ -365,6 +392,9 @@ public:
|
|||
void setupDescriptors();
|
||||
void preparePipelines();
|
||||
void prepareToneMappingPipeline();
|
||||
void generateIrradianceCubemap();
|
||||
void generatePrefilteredCubemap();
|
||||
void generateBRDFLUT();
|
||||
void prepareUniformBuffers();
|
||||
void updateUniformBuffers();
|
||||
void prepare();
|
||||
|
|
|
|||
Loading…
Reference in New Issue